Principal Software Engineer

Kaluza Ltd.; West of England; Sur place; GBP 110 000 - 150 000; Plein temps

Avantages offerts par ce poste

26 days holiday

Private medical insurance

Pension scheme

Discretionary bonus

Flex Fund 5% of salary

Learning budget

Résumé du poste

Kaluza Ltd. is seeking a Principal Software Engineer to act as the leading technical authority for a major global product area, spanning multiple modules within a cloud-based platform.

You will drive innovation, align solutions with target architecture standards, and enable multiple teams while providing strategic guidance to our architecture leadership. This role emphasises hands-off leadership with occasional code-level design or PoC work.

Qualifications

• Experience leading architecture for large-scale distributed systems.
• Proven track record delivering global B2B2C SaaS products.
• Strong AWS and API design experience; DevOps/CI/CD fluency.

Responsabilités

• Lead technical direction for a major global product area.
• Drive innovation and align solutions with target architecture standards.
• Enable multiple teams and collaborate with architecture leadership.
• Provide hands-off leadership; engage in code-level design for PoC when needed.

Connaissances

Architectural leadership

Cloud architecture

AI/ML experience

DevOps/CI-CD

Team leadership

AWS/API design

Description du poste

Job Responsibilities

• Architect modern distributed, cloud-based systems applying modern architecture and engineering practices in an enterprise software environment.
• Shape and influence technical vision and product roadmaps to align with business goals.
• Provide hands-on leadership, making appropriate technical choices to satisfy requirements.
• Mentor and guide engineers in delivering autonomous, loosely coupled distributed systems with proven architectural principles and patterns.
• Lead technical due diligence and make high-stakes decisions with confidence.
• Deliver results, influence diverse audiences, and orchestrate cross-functional solutions spanning multiple product features.
• Engage effectively with both technical teams and executive leaders.
• Work independently and collaboratively, bringing strong opinions while respecting others, communicating openly, and maintaining self-awareness with a continuous growth mindset. Experience enabling engineering teams to use AI and delivering AI/ML powered solutions.
• Demonstrable experience in architecting solutions in complex business domains, particularly interface design and data modelling, ideally with experience in AWS and API design.
• Proven track record delivering global B2B2C SaaS (energy or other mission-critical industries).
• Success driving adoption of modern engineering practices (e.g. DevOps, CI/CD).
• Experience leading teams through significant changes in ways of working.
• Ability to ramp up rapidly in new domains and technologies.

Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future.

Our platform orchestrates millions of real-time decisions across homes, devices, markets and grids. By combining predictive algorithms with human-centred design, Kaluza makes clean energy dependable, affordable and adaptive to everyday life. With teams across Europe, Asia and Australia, and a joint venture with Mitsubishi Corporation in Japan, we power leading companies including OVO, AGL and ENGIE, as well as innovators like Volvo and Volkswagen.

What you'll do

As a Principal Software Engineer at Kaluza, you will be the leading technical authority for a major global product area comprising multiple modules. You will lead innovation on some of the most complex, ambiguous, and large-scale solutions, aligning them with target architecture standards and contributing to the creation of a scalable platform. You'll have a broad sphere of influence, enabling multiple teams and serving as a strategic partner to our architecture leadership team and our community of principal and staff engineers. Your impact will come mostly from 'hands-off' work; you'll not be expected to write code day-to-day. But for some challenges, you may need to dive into code-level design or help build a proof-of-concept.

• Play to win: Collective pride in decarbonising energy at scale.
• Solve the real problem: Cutting through complexity to focus on real-world outcomes.
• Build trust every day: Consistency, transparency and doing what we say.
• Own the outcome: Full accountability, wins and setbacks, without ego.
• Go further together: Collaboration, respect and different perspectives.

Our Perks

• Time off and family: 26 days' holiday, plus 26 weeks' full pay for new parents with no qualifying service period
• Health and security: Private medical insurance with virtual GP, life assurance, pension scheme, free mortgage advice and eye tests
• Pay and flexibility: Discretionary bonus, a Flex Fund of 5% [of salary] to spend on the benefits you want most, retail discounts through Perks at Work
• Growth and setup: Personal learning budget, home office budget
• Climate: Furthr, our climate action app

Come as you are

We want to meet people from all walks of life. The more inclusive we are, the better our work will be, and we recognise talent on merit and potential. If you're excited about the role but don't tick every box, we'd still love to hear from you.